Configuration C
53
Important
Pipes subject to technical evaluation 14 08–1289.
Tab.22 Maximum length for configuration C
53
Configuration
Unit
SIRIUS THREE FS 50 SIRIUS THREE FS
70
SIRIUS THREE FS 90 SIRIUS THREE FS
110
mm
Ø 80 / Ø 125
Ø 80 / Ø 125
Ø 110 / Ø 160
Ø 110 / Ø 160
9
m
L1<15 m and L1+L2
<60 m (Ø 80)
L<15 m and
L1+L2<30 m (Ø 80)
L1<7 m and L1+L2<27
m (Ø 110)
L1<7 m and
L1+L2<27 m (Ø 110)
6.6
Flue gas system accessories
A detailed list of flue system accessories can be found in our catalogue.
6.7
Electrical connections
6.7.1
Recommendations
Only qualified professionals may carry out electrical connections, always
with the power off.
Earth the appliance before making any electrical connections.
Power the appliance via a circuit that includes an omni-polar switch with
contact opening distance of 3 mm or more.
When making electrical connections to the mains, respect the polarities.
Danger
Position the various electrical cables in such a way that they never
touch the heating pipes.
Keep the various electrical cables far enough from the heating
pipes so that they cannot be damaged by the effect of the heat.
6.7.2
Recommended cable cross section
The cable will be carefully chosen according to the following information:
Distance of the appliance from the power source.
Upstream protection.
Neutral operating conditions.
Tab.23 Specifications of the power cable and the power source
Cable cross section (mm²)
3 x 1.5
Curve C (circuit breaker)
10 A
6.7.3
Accessing the terminal blocks
1. Remove the front panel.
Fig.54
Maximum length of the connections
MW
-3
0
0
0
1
7
3
-0
1
L1
L2
9
6 Installation
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